An Organic-Inorganic Hybrid Thermo-Responsive Valve

Effect of organic modifiers on the thermo-optic characteristics of inorganic–organic hybrid material films

The thermo-optic coefficient (dn/dT) of inorganic–organic hybrid material films prepared by the sol-gel process of organoalkylsilanes is measured using a prism coupler equipped with a hot stage. The effect of the organic modifier on the variation of dn/dT in inorganic–organic hybrid material films has been investigated. The value of dn/dT becomes more negative with increasing molecular weight o...

Thermo-mechanically responsive crystalline organic cantilever.

We report thermo-mechanically responsive and thermochromic behavior in the single crystalline organic semiconductor butoxyphenyl N-substituted naphthalene diimide (BNDI). We show that initially monoclinic single crystals of BNDI undergo a single-crystal to single-crystal transition to a triclinic phase. This transition accompanies large changes in the crystal packing, a visible decrease in crys...

Colorful detection of organic solvents based on responsive organic/inorganic hybrid one-dimensional photonic crystals

Solvent sensitive organic/inorganic hybrid one-dimensional photonic crystals (1DPCs) were prepared through alternating thin films of poly methyl methacrylate-co-hydroxyethyl methacrylate-co-ethylene glycol dimethacrylate (PMMA-co-PHEMA-co-PEGDMA) and titania nanoparticle sol by spincoating. Since the titania layer has a higher refractive index compared with the polymer layer, an obvious photoni...

Composite Materials of Thermo-responsive Polymer Networks and Inorganic Nanoparticles

The focus of this work is on composite materials of inorganic nanoparticles such as TiO2 embedded within microspheres of a responsive polymeric network. Microgels of N-isopropylacrylamide (NIPAM) with interpenetrating (IP) linear chains of poly(acrylic acid) (PAAc) were synthesized to promote the incorporation of TiO2. Dynamic light scattering measurements of the IP-microgels in aqueous environ...

Photochromic organic–inorganic hybrid materialsw